How to get worldPosition of childNode in gltf Model from entity?

How to get worldPosition of childNode in gltf Model from entity?

And Why model forward to east? In blender is forward to north.

How to get worldPosition of childNode in gltf Model from entity?

Entities tend to abstract away the details of the underlying model primitive. I would suggets using the primitive API if you need fine=grained control. If you would just like to manipulate the children nodes, this Sandcastle shows how to dynamically change node properties.

And Why model forward to east? In blender is forward to north.

glTF uses a right-handed coordinate system, while blender uses left-handed coordinate system. Different tools and software uses different coordinate systems for many reasons. For example Sketchfab is right-handed, and Unity & Unreal are left-handed.